TV Guide notes, "In seasons past, that head-scratcher has been dubbed 'Bagel' (Walt is abducted by the Others!), 'Challah' (Penny's research team locates the island!), 'The Rattlesnake in the Mailbox' (Jack is flashing forward!) and 'Frozen Donkey Wheel' (which, quite literally, Ben rotated)." We don't know for sure what the season finale will be about, so there's some guesswork involved in thinking up a code name for this final moment. There is a (possibly spoilery) clue in that TV Guide post, however, if you want a jumping-off point.

Ideas can be submitted here, and the producers' pick will be announced during ABC's weekly Lost podcast on March 26. Thinking caps: Activate!